scsi: ufs: Don't disable core_clk_unipro if the link is active

If we want to disable clocks but still keep the link active, both
ref_clk and core_clk_unipro should be skipped.

Commit 284fa080cb5f ("scsi: ufs: fix broken hibern8_on_idle sysfs
nodes") is the original change from msm-4.14. We pick it up to msm-5.4
due to upstream missed this change. To follow GKI policy on 5.4, we
simplifed it and kept parameters name to avoid breaking ABI.

Change-Id: I5f86775c150e495322d14ec57ebf76a710257931
Signed-off-by: Ziqi Chen <ziqichen@codeaurora.org>